非生物胁迫下植物表观遗传变异的研究进展

植物在整个生命过程中固着生长,不能主动躲避外界不良环境的危害,需要通过自身的防御机制来抵御和适应外界胁迫,而表观遗传修饰在调控植物应对不良环境胁迫中起重要作用。该文从DNA甲基化、组蛋白修饰、染色质重塑和非编码RNA等方面进行了综述,主要阐述了近年来国内外有关非生物胁迫下植物的表观遗传变化,以期为利用表观遗传变异提高植物的抗胁迫能力提供参考。

Research Progress of Abiotic Stress Induced Epigenetic Variation in Plants

Because of sedentary life style,plants can not avoid bad environmental stimulus,hence need to defense and avoid environmental stress through their own defense mechanism.Epigenetic plays an important role in regulating plans response to environmental stress.This paper summarizes the current research status of epigenetic variations of plants induced by abiotic stress,including DNA methylation,histone modification,chromatin remodeling and non coding RNA.We are expecting to exploit epigenetic changes improve the stress resistance of plants.